Pulse or digital communications – Receivers – Particular pulse demodulator or detector
Reexamination Certificate
2006-11-07
2006-11-07
Tran, Khanh (Department: 2611)
Pulse or digital communications
Receivers
Particular pulse demodulator or detector
Reexamination Certificate
active
07133471
ABSTRACT:
A demodulation system for receiving and demodulating multiple modulated signals, including a first modulated signal having a first bit rate and/or a first modulation format and a second modulated signal having a second bit rate and/or a second modulation format.The demodulator demodulating the first modulation format modulated signal provides a cross-correlated demodulated in-phase and quadrature-phase baseband signal and the demodulator demodulating the second modulation format modulated signal provides a second demodulated baseband signal. A selector selects either the first or the second or both bit rate and/or modulation format demodulated baseband signals. In an alternative embodiment two demodulators are implemented for the demodulation of multiple signals. In certain embodiments the demodulator demodulating the first bit rate modulated signal or the second bit rate modulated signal is comprised of bit rate switchable filters and/or mis-matched filters which are mismatched to that of the filters of the modulator of the first or the second bit rate modulated signal. In some of the applications the first or the second modulated signal is an Orthogonal Frequency Division Multiplexed (OFDM) modulated signal and/or a spread spectrum modulated signal and/or Phase Shift Keying (PSK) modulation, or a Quadrature Modulation (QM), or a Frequency Modulation (FM) modulated signal. In certain implementations and applications the demodulator is used for demodulation of Gaussian Minimum Shift Keying (GMSK) modulated signals and spread spectrum modulated signals.
REFERENCES:
patent: 3944926 (1976-03-01), Feher
patent: 4229821 (1980-10-01), De Jager et al.
patent: 4339724 (1982-07-01), Feher
patent: 4350879 (1982-09-01), Feher
patent: 4531221 (1985-07-01), Chung et al.
patent: 4567602 (1986-01-01), Kato et al.
patent: 4644565 (1987-02-01), Seo et al.
patent: 4720839 (1988-01-01), Feher et al.
patent: 4745628 (1988-05-01), McDavid et al.
patent: 4962510 (1990-10-01), McDavid et al.
patent: 5299228 (1994-03-01), Hall
patent: 5359521 (1994-10-01), Kyrtsos et al.
patent: 5430416 (1995-07-01), Black et al.
patent: 5479448 (1995-12-01), Seshadri
patent: 5491457 (1996-02-01), Feher
patent: 5638408 (1997-06-01), Takaki
patent: 5784402 (1998-07-01), Feher
patent: 5815525 (1998-09-01), Smith et al.
patent: 5909435 (1999-06-01), Apelewicz
patent: 6067018 (2000-05-01), Skelton et al.
patent: 6088398 (2000-07-01), Wahlqvist et al.
patent: 6088585 (2000-07-01), Schmitt et al.
patent: 6101224 (2000-08-01), Lindoff et al.
patent: 6138330 (2000-10-01), Galbreath
patent: 6198777 (2001-03-01), Feher
patent: 6298244 (2001-10-01), Boesch et al.
patent: 6393294 (2002-05-01), Perez-Breva et al.
patent: 6418324 (2002-07-01), Doviak et al.
patent: 6424867 (2002-07-01), Snell et al.
patent: 6445749 (2002-09-01), Feher
patent: 6470055 (2002-10-01), Feher
patent: 6539253 (2003-03-01), Thompson et al.
patent: 6591084 (2003-07-01), Chuprun et al.
patent: 6665348 (2003-12-01), Feher
patent: 6711440 (2004-03-01), Deal et al.
patent: 6741187 (2004-05-01), Flick
patent: 6748021 (2004-06-01), Daly
patent: 6757334 (2004-06-01), Feher
patent: 6772063 (2004-08-01), Ihara et al.
patent: 6775254 (2004-08-01), Willenegger et al.
patent: 6775371 (2004-08-01), Elsey et al.
patent: 6788946 (2004-09-01), Winchell et al.
patent: 6807564 (2004-10-01), Zellner et al.
patent: 6823181 (2004-11-01), Kohno et al.
patent: 6842617 (2005-01-01), Williams et al.
patent: 6865395 (2005-03-01), Riley
patent: 6876310 (2005-04-01), Dunstan
patent: 6876859 (2005-04-01), Anderson et al.
patent: 6879584 (2005-04-01), Thro et al.
patent: 6879842 (2005-04-01), King et al.
patent: 6889135 (2005-05-01), Curatolo et al.
patent: 6906996 (2005-06-01), Ballantyne
patent: 6907291 (2005-06-01), Snell et al.
patent: 6928101 (2005-08-01), Feher
patent: 2002/0085641 (2002-07-01), Baum
patent: 2005/0185699 (2005-08-01), Feher
U.S. Appl. No. 10/205,478, filed Jul. 24, 2002, Feher, K.
U.S. Appl. No. 10/831,562, filed Apr. 23, 2004, Feher, K.
U.S. Appl. No. 10/831,724, filed Apr. 24, 2004, Feher, K.
U.S. Appl. No. 09/732,953, filed Dec. 7, 2000, Feher, K.
U.S. Appl. No. 60/615,678, filed Oct. 5, 2004, Feher, K.
U.S. Appl. No. 09/370,360, filed Aug. 9, 1999, Feher, K.
U.S. Appl. No. 09/370,361, filed Aug. 9, 1999, Feher, K.
U.S. Appl. No. 09/370,362, filed Aug. 9, 1999, Feher, K.
U.S. Appl. No. 60/098,612, filed Aug. 30, 1998, Feher, K.
U.S. Appl. No. 60/095,943, filed Aug. 10, 1998, Feher, K.
U.S. Appl. No. 11/105,295 Applicant Feher, K.,: “OFDM, CDMA, Spread Spectrum, Cross-Correlated and filtered Modulated Systems” a continuation Application of U.S. Appl. No. 10/205,478 and of U.S. Appl. No. 09/370,360 now US patent 6,470,055 ; Filed: Apr. 14, 2005.
U.S. Appl. No. 11/107,516 filed on Apr. 18, 2005 entitled: “Spread spectrum, cross-correlated and filtered modulated systems” continuation of U.S. Appl. No. 10/205,478 and of U.S. Appl. No. 09/370,360 now US patent 6,470,055. Application Published on Aug. 25, 2005 as US-2005-0185699-A1.
U.S. Appl. No. 11/023,279 Applicant Feher, K.,: “Broadband, Ultra Wideband and Ultra Narrowband Reconfigurable Interoperable Systems”. Filed Dec. 28, 2004.
U.S. Appl. No. 11/102,896, Applicant Feher, K., submitted to the USPTO on Dec. 22, 2004 and entitled “Hybrid Communication and Broadcast Systems”.
U.S. Appl. No. 11/023,254 Feher, K.,: “Data Communication for Wired and Wireless Communication”, filed Dec. 28, 2004.
U.S. Appl. No. 90/007,305 of U.S. Pat. 6,665,348 issued Dec. 16, 2003: “System and Method for Interoperable Multiple-Standard Modulation and Code Selectable Feher' s GMSK, Enhanced GSM, CSMA, TDMA,OFDM, and other Third-Generation CDMA, WCDMA and B-CDMA”. U.S. Appl. No. 09/370,361. K. Feher filed this Reexamination application on Nov. 19, 2004.
U.S. Appl. No. 11/197,610, entitled “Location finder, tracker, communication and remote control system”, filed on Aug. 3, 2005.
U.S. Appl. No. 11/197,670, “Medical diagnostic and communication system”, filed on Aug. 3, 2005.
U.S. Appl. No. 11/197,609, entitled “Multimode communication system”, filed on Aug. 3, 2005.
U.S. Appl. No. 90/007,687 , filed Aug. 22, 2005 for U.S. Pat. 6,470,055 issued Oct. 22, 2002: “Spectrally efficient FQPSK, FGMSK, and FQAM for enhanced performance CDMA, TDMA, GSM, OFDN, and other systems”.
U.S. Appl. No. 90/007,688, filed Aug. 22, 2005 for U.S. Pat. 6,757,334 issued Jun. 29, 2004: “Bit rate agile third-generation wireless CDMA, GSM, TDMA and OFDM system”.
Feher, K.: “Demodulation of Multiple Signals” a Continuation application of U.S. Appl. No. 11/105,295, filed on Apr. 14, 2005, which is continuation of U.S. Appl. No. 10/205,478, filed on Jul. 24, 2002 and of U.S. Appl. No. 09/370,360, filed on Aug. 9, 1999 and now US patent 6,470,055.
K. Feher: “Multiuse location finder, communication, medical, control system” File(“MUtrOct. 6, 2005”), claiming priorities of U.S. Appl. No. 11/197,609, 11/197,610 amd 11/197,670, filed on Aug. 3, 2005, Filed Oct. 6, 2005 with PCT-USPTO; PCT-International.
K. Feher: “Efficient Spectral Saving FQPSK and FQAM Signal Transmission and Reception Systems,” International Publication No. WO 00/10272; PCT International Application SN: PCT/US99/17995 filed Aug. 9, 1999; European Application No. 99951374.0 (Germany, Finland, France, Sweden, United Kingdom). Also filed in Canada and Australia. (Abandoned).
Feher, K. : “Feher Keying (FK) Modulation and Transceivers Including Clock Shaping Processors,” International Publication No: WO 00/13382; PCT International Applic. SN: PCT/US99/19909. European Application No. 99951374.0 (Germany, Finland, France, Sweden, United Kingdom). Also filed in Canada and Australia. Related to U.S. Pat. 6,198,777. (Abandoned).
3GPP TS 25.213 V6.0.0 (Dec. 2003) 3rdGeneration Partnership Project ; Technical Specification Group Radio Access Network Spreading and Modulation (FDD) (Release 6) 2
LandOfFree
Demodulation of multiple signals does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Demodulation of multiple signals, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Demodulation of multiple signals will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3703311